/* AI Project Builder — Part 2 additions (loaded after styles.css) */

/* ============ Editor syntax highlighting overlay ============ */
.editor-area { position: relative; }

.editor-stack {
  position: relative;
  flex: 1 1 auto;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  background: #0a1024;
}

.editor-stack .hl-overlay {
  position: absolute;
  inset: 0;
  margin: 0;
  padding: 12px 14px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.55;
  white-space: pre;
  tab-size: 2;
  overflow: auto;
  pointer-events: none;
  z-index: 1;
  color: var(--text);
  background: transparent;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.editor-stack .hl-overlay::-webkit-scrollbar { display: none; width: 0; height: 0; }

.editor-stack #editor {
  position: relative;
  z-index: 2;
  color: transparent;
  caret-color: #d8e1ff;
  background: transparent;
}
.editor-stack #editor::selection {
  background: rgba(93,141,255,.30);
  color: transparent;
}
.editor-stack #editor::-moz-selection {
  background: rgba(93,141,255,.30);
  color: transparent;
}

/* Highlighted token classes */
.hl-comment   { color: #5a6a9a; font-style: italic; }
.hl-string    { color: #a3d68b; }
.hl-number    { color: #e8a06a; }
.hl-keyword   { color: #a18bff; font-weight: 600; }
.hl-function  { color: #63c5ea; }
.hl-punct     { color: #8b9bd0; }
.hl-type      { color: #ffc878; }
.hl-property  { color: #7fc3ff; }
.hl-tag       { color: #ff7a97; }
.hl-attr      { color: #ffc878; }
.hl-doctype   { color: #6f7fb2; }
.hl-selector  { color: #ff7a97; }
.hl-atrule    { color: #a18bff; }
.hl-md-head   { color: #63c5ea; font-weight: 700; }
.hl-md-code   { color: #a3d68b; }
.hl-md-link   { color: #7fc3ff; text-decoration: underline; }
.hl-md-em     { font-style: italic; color: #ffc878; }
.hl-md-strong { font-weight: 700; color: #ffc878; }

/* ============ Command palette ============ */
.cmd-root {
  position: fixed; inset: 0;
  background: rgba(4,8,20,.72);
  backdrop-filter: blur(4px);
  z-index: 10001;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 12vh 20px 20px;
}
.cmd-box {
  width: 100%;
  max-width: 620px;
  background: var(--panel);
  border: 1px solid var(--border-2);
  border-radius: 10px;
  box-shadow: 0 24px 80px rgba(0,0,0,.6);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  max-height: 70vh;
}
.cmd-input {
  width: 100%;
  border: none;
  border-bottom: 1px solid var(--border);
  padding: 14px 16px;
  font-size: 15px;
  background: #0a1024;
  color: var(--text);
  outline: none;
  font-family: var(--sans);
}
.cmd-list {
  overflow: auto;
  padding: 6px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.cmd-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
  user-select: none;
  border: 1px solid transparent;
}
.cmd-item:hover,
.cmd-item.sel {
  background: rgba(93,141,255,.14);
  border-color: var(--border-2);
}
.cmd-item .cmd-icon { width: 22px; text-align: center; color: var(--text-dim); }
.cmd-item .cmd-label { flex: 1 1 auto; }
.cmd-item .cmd-sub {
  font-size: 11px;
  color: var(--text-mute);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 240px;
}
.cmd-item .cmd-hint {
  font-size: 11px;
  color: var(--text-mute);
  border: 1px solid var(--border);
  padding: 1px 6px;
  border-radius: 4px;
  font-family: var(--mono);
}
.cmd-section {
  font-size: 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-mute);
  padding: 8px 12px 2px;
}
.cmd-empty { padding: 20px; color: var(--text-mute); text-align: center; font-size: 13px; }

/* ============ Help overlay ============ */
.help-root {
  position: fixed; inset: 0;
  background: rgba(4,8,20,.72);
  backdrop-filter: blur(4px);
  z-index: 10001;
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
}
.help-box {
  width: 100%;
  max-width: 720px;
  max-height: 85vh;
  overflow: auto;
  background: var(--panel);
  border: 1px solid var(--border-2);
  border-radius: 10px;
  padding: 22px 26px;
  box-shadow: 0 24px 80px rgba(0,0,0,.6);
}
.help-box h2 { margin: 0 0 4px; font-size: 17px; }
.help-box p.sub { margin: 0 0 18px; color: var(--text-mute); font-size: 12.5px; }
.help-grid {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 6px 18px;
  font-size: 13px;
}
.help-grid h4 {
  grid-column: 1 / -1;
  margin: 14px 0 4px;
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-mute);
  border-bottom: 1px solid var(--border);
  padding-bottom: 4px;
}
.help-key {
  font-family: var(--mono);
  font-size: 12px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  padding: 2px 7px;
  border-radius: 4px;
  display: inline-block;
  color: var(--accent-2);
}
.help-desc { color: var(--text-dim); }

/* ============ Diff viewer ============ */
.diff-root {
  position: fixed; inset: 0;
  background: rgba(4,8,20,.78);
  backdrop-filter: blur(4px);
  z-index: 10002;
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
}
.diff-box {
  width: 100%;
  max-width: 1100px;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  background: var(--panel);
  border: 1px solid var(--border-2);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0,0,0,.6);
}
.diff-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px; border-bottom: 1px solid var(--border);
  background: var(--panel-2);
}
.diff-head h3 { margin: 0; font-size: 14px; }
.diff-head .meta { color: var(--text-mute); font-size: 11.5px; margin-top: 2px; }
.diff-body {
  flex: 1 1 auto;
  overflow: auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 0;
  background: #0a1024;
}
.diff-col { overflow: auto; min-height: 0; }
.diff-col + .diff-col { border-left: 1px solid var(--border); }
.diff-col-head {
  position: sticky; top: 0;
  padding: 6px 10px;
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-mute);
  background: var(--panel-2);
  border-bottom: 1px solid var(--border);
}
.diff-row {
  display: flex;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.6;
  padding: 0 8px;
  white-space: pre;
}
.diff-row .ln {
  min-width: 42px; text-align: right;
  color: var(--text-mute);
  user-select: none;
}
.diff-row.add    { background: rgba(61,220,132,.10); }
.diff-row.remove { background: rgba(255,92,122,.10); }
.diff-row.add    .ln { color: var(--good); }
.diff-row.remove .ln { color: var(--danger); }
.diff-row.empty  { background: rgba(255,255,255,.02); }

/* ============ Template picker ============ */
.tpl-root {
  position: fixed; inset: 0;
  background: rgba(4,8,20,.72);
  backdrop-filter: blur(4px);
  z-index: 10002;
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
}
.tpl-box {
  width: 100%;
  max-width: 780px;
  max-height: 82vh;
  background: var(--panel);
  border: 1px solid var(--border-2);
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0,0,0,.6);
}
.tpl-head {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--panel-2);
}
.tpl-head h3 { margin: 0 0 4px; font-size: 15px; }
.tpl-head p { margin: 0; color: var(--text-mute); font-size: 12px; }
.tpl-grid {
  padding: 14px;
  overflow: auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 10px;
}
.tpl-card {
  text-align: left;
  padding: 12px 14px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: transform .08s, border-color .12s, background .12s;
}
.tpl-card:hover { border-color: var(--accent); background: #1a2550; transform: translateY(-1px); }
.tpl-card .tpl-icon { font-size: 20px; }
.tpl-card .tpl-name { font-weight: 600; margin: 6px 0 3px; font-size: 13px; }
.tpl-card .tpl-desc { color: var(--text-mute); font-size: 11.5px; line-height: 1.4; }
.tpl-card .tpl-count {
  margin-top: 6px;
  font-size: 10.5px;
  color: var(--accent-2);
  font-family: var(--mono);
}

/* ============ Drop zone ============ */
.drop-hint {
  position: fixed;
  inset: 0;
  z-index: 10003;
  pointer-events: none;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(93,141,255,.14);
  border: 3px dashed var(--accent);
  color: var(--accent-2);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: .3px;
  text-shadow: 0 2px 12px rgba(0,0,0,.6);
}
.drop-hint.on { display: flex; }

/* ============ Floating action buttons ============ */
.fab-stack {
  position: fixed;
  right: 18px;
  bottom: 46px;
  z-index: 9000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.fab {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(180deg, #4d7dff 0%, #3563e0 100%);
  border: 1px solid #5c8bff;
  color: #fff;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(53,99,224,.45);
  cursor: pointer;
}
.fab:hover { transform: translateY(-1px); }
.fab.secondary {
  background: var(--bg-3);
  border: 1px solid var(--border-2);
  color: var(--text);
  box-shadow: 0 4px 14px rgba(0,0,0,.35);
}

/* ============ Small misc ============ */
.badge-part2 {
  font-size: 10px;
  border: 1px solid var(--border);
  padding: 1px 6px;
  border-radius: 999px;
  color: var(--text-mute);
  margin-left: 8px;
}

@media (max-width: 900px) {
  .help-grid { grid-template-columns: 1fr; }
  .help-key { margin-bottom: 2px; }
  .diff-body { grid-template-columns: 1fr; }
  .diff-col + .diff-col { border-left: none; border-top: 1px solid var(--border); }
}